In Krebs cycle, FAD participates as electron acceptor during the conversion of _____ (a) Succinyl Co.A to succinic acid (b) Fumaric acid to malic acid (c) Succinic acid to fumaric acid (d) Malic acid to oxaloacetic acid
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"(c) Succinic acid to fumaric acid.
Reason:
Among the given series of reaction, in the conversion of Succinyl CoA to succinic and Malic acid to oxaloacetic acid NAD+ acts as electron acceptor. In case of ""fumaric acid"" into ""malic acid"", water enhances the process. In case of Succinic acid to fumaric acid conversion, the FAD acts as electron acceptor.
The FAD upon ""accepting two electrons"" gets converted into FADH2 and the reaction is preceded. The given image helps in better understanding:
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